Hoop-forming machine



w. w; PUTNEY. HOOP FORMING` MACHINE. APPLICATION FILED AUGS, I9I9. REHEWED APR. 3, 1922.

vPatented. Juy 4i, i922.

2 SHEETS-SHEET I.

gtkmm@ @MMM/y@ W. W. PUTNEY.

Patented July 4., 1922;

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mmm@ FTNV WILLIAM VT. UTNEY, OF GRAND RAFIDS, MICHIGAN, ASSIGNOR OF ONE-FOURTH T0 CHARLES E. CARTER AND ONE-FOURTH TO EDWARD M. HOLLAND, OF GRAND RAPIDS, MICHIGAN.

HCOP-FORMING MACHINE.

Specification of Letters Patent.

-lFateirited July el, 1922.

Application filed August 9, 1919, Serial No. 316,289. Renewed April 3, 1922. Serial No. 549,164.

To all @07mm t may concern: Y

Be it known that I, WILLIAM VJ. PUTNEY, a citizen of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful improvements in Hoop-Forming Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to' make and use the same.

This invention relates to a hoop machine by means of which a pluralityv of hoops of different sizes may be formed and nailed, afterward being used to makeL a barrel of standard size. It is an object and purpose of the invention to provide a machine of this character upon whichI various sizes of hoops used in constructing a barrel may all be formed. A further object of the invention is to provide a machine of this character containing hoop forming portions adjustably mounted, which may be adjusted tov various positions on the machine, whereby different sizes of hoops may be made as desired. Many other objects and purposes, together' with novel constructions and arrangements of parts for attaining the same will appear as understanding' of the invention is had from the following description7 taken in connection with the accompanying drawings. in which,

i Fig. 1 is a front elevation of the machine.

Fig. 2 is a side view thereof.

Fig. 3 is a rear elevation.

Fig. l is a fragmentary front view of the lower portion of the machine, the construction being slightly modified from that shown in Fig. 1, and

Fig. 5 .is an enlarged fragmentary perspective view of the hoop holding'hook.l

Like reference characters refer to like parts in the different figures of the drawings.

The machine includes in its construction, a base 1 from 'which angle iron standards 2 project vertically being secured in any suitable manner to the base and each including an outwardly extending leg 3 and a rearwardly extending leg 4. The standards 2 are spaced a distance apart and at their upper ends carry a member 5, the upper edge of which is formed with an outwardly extending curved flange 6 to serve as a form about which the hoops may be bent. This flange may be hardened, for instance, by chilling it. In the upper surface thereof a groove 7 of shallow depth is made, the purpose of which will later appear. The standards 2 are held rigidly in upright position by braces 8 which are disposed between the standards and the upward projection 1 of the base 1, as best shown in Fig. 2.

The standards serve as guides for a plate 9 slidably mounted in front thereof. On its rear sides the plate carries spaced apart vertical bars 10 which are formed at their upper and lower inner edges with lips 10a eX- tending over the edges of the legs 3 of the standards, thus serving as guides for the slidable mounting of the plate. Normally the plate is held in upper position against the stationary member 5, strong coiled springs 1l interposed between hooks 12 attached to .the plate 9 and member 5, as shown, serving to elevate the plate.

A rod 13 is loosely mounted on the rear side of the plate 9, passing through two lugs 111 cast integral with the plate. A coiled spring 15 is located around the rod and cisposed between said lug 14 and a collar 16 adjustably mounted on the rod. Adjacent its upper end the rod is fashioned into a bar substantially rectangular in cross sect-ion, as indicated at 17, a shoulder being formed between the rod and bar which normally vrests against the upper side of the lug 14. At its upper end the bar 17 is formed into a hook 18 which projects over the form 6. A footlever 19 is pivotally mounted between the extensions 1a of the base 1 and extends forward between the standards. A link 2O connected at its lower end to a hook 21 fastened to the lever 19, and at its upper end passing around a hook 22 secured to the plate 9, serves to more the plate in a downward direction on operation of the foot lever. lt will be evident that upon moving the lever 19 in a downward direction, springs 11 are stretched and the rod 13 drops until hook 1S comes into contact with the form 6 or with a hoop interposed between the fornr and hook, after which any further movement of the plate 9 in a downward direction does not affect rod 13 which remains with the hook 18 clamping a hoop under it against the form 6 under the influence of spring 15 which, normally, is under compression and tends to draw the rod 13 in a downward direction,

i tions on the plate. low the form 24 a rib 27 is secured to plate 9, it also being provided with an outwardly projecting curved form 28. rllhe attachmentV of the rib 27 to the plate 9 is by means of slots 29 in the plate and bolts 30 passing through the rib and the slots whereby this lower form may also be adjusted to different positions en the plate.

The operation of the machine thus far described may be now set forth. ing the hoop, it is first grasped between the Vhands and the ends brought together with one overlapping the other. The middle portion of the hoop is then located below the form v24 and the ends of the hoop brought under the hook 18 and abovethe form 6.

f A downward operation of lever 19 draws plate 9 down as described, and hook 18 bears against they ends of the hoop with a pressure equal to the force exerted by compression spring 1.5. The foot lever 19 is forced down as far as possible, the form 24 moving with the plate 9, and the ends of the hoop slip over each other under the hook 18 during this operation. When the lever 19 is down to its lowermost position, a nail is driven through the overlapping ends of the hoop and, coming against the shallow concave `groove 7 in the upper form 6, is turned and clenched automatically. rIhe hoop thus formed and nailed is of proper size for one part of the barrel. To make a hoop of different and larger size for another part of the barrel, the same operation is performed, except that the middle portion of the hoop is placed under the form 28 instead of the form 24. As soon as a hoop is nailed the 'lever 19 is released and springs 11 carry plate 9 upwardly which, when the plate is near the upper end of its movement, brings the llug 14 against the shoulder ofbar 17 and lifts the hook 18 to its normal upper position, thus freeing the hoop for removal.

The foregoing operation and construction described is all that is necessary for twosizes of hoops. In making a barrel,

j however, three sizes of hoops are practically always needed and many l.times four'diiferent sizes are used. Additional structure imaybe attached to this machine to make 'either the three or four different sizes. `pairvof spaced apart lugs 31 extend upwardly from and are castintegral with the base 1 at its forward end.- In' these lugs a In nailrod 32 is pivotally mounted, the ends thereof being turned at right angles to the length of the rod as shown in Figs. 1 and 2. A plurality of thin metal stripsY 33 are supported by and between the ends of the rod, holes being formed in the strips to pass the rod. Nuts 34 threaded on to the ends of the rod hold the strips in place. Shoulders 36 are formed one on each lug 31 to serve as stops to limit the movement of the construction described to the positions shown in full and dotted lines in Figure 2. rIhe uppermost strip 33 is extended to one side as shown at 35.

In making the hoops as previously described, this Vdevice occupies the position shown in dotted outline in Fig. 2, this allowing the lever 19 to go lower than when said device is in theY full line' position in said ligure. To make hoops ofrsmaller size, the device is operated into vertical position, the foot of the operator engaging with the extension 35 to effect this. TWhen the foot lever 19`is operated it is evidentvthat it cannot draw plate 9 and attached form 24 down Vas far asV before so that the hoop made is of less size than it would have been had the bars 33 occupied the dotted line position of Fig. 2. In the same manner a hoop turned around forms 6 and 23 is smaller than one turned around the saine forms -distance at each end beyond the lugs 31 and each end having an operating wheel or sector of a wheel 35a attached thereto,the outer edges of which are roughened so that contact of the foot of the operator there.

with serves to readily turn the rod. Arms 321 project from the rod and the plates 33 are mounted thereon. The operation of the modified form of device in the machine is identical with that formerly described, except that it is easier and more convenient and may be operated at either end.

From the foregoing it will be apparent that I have made a nailing form for hoops in which a variety of' sizes ofhoops may be made and that all of the hoops of a certain size will be exact in dimensions without variation. As before stated, in the ordinary barrel hoops are used of three different sizes, and in my machine it is possible to make the uppermost and lowermost hoops around forms 6 and 24 Awith the bars 33 in upper position, the middle hoop adjacent the middle of the barrel being made around forms Gand 28 with the bars 33in the lower position shown in Fig. 2, while intermediate hoops may be made around forms 24 and 6 with bars 33 `in lower position or around forms 6 and 28 with bars 33 in upper yposithe same may be readily made on my machine. It wil also be apparent that by reason of the adjustable connection of the forms 2st and 28 to the plate 9, any desired size of hoop within limits may be made and that by taking away or adding to the number of bars 33, a variation in the sizes of hoops may be made, the movement of the foot lever in making two of the sizes of hoops being governed by the thickness of the plates combined.

The machine is simple in construction and operation and is very durable and eflicient. Many variations in minor detail may be resorted to without departing from the invention which is defined in the appended claims and all modifications in structure falling within the scope of said claims are to be considered as comprehended within my invention.

claim l. in combination, an upright support, a curved form secured at the upper end of the support, a plate slidably mounted on the support, a plurality of forms curved oppositely from the first form secured to the plate in vertical spaced relation, means tending to elevate the plate, means to operate the plate in a downward direction. and means for controlling the extent of downward movement of the plate.

2. In combination, an upright support, a curved form secured at the upper end thereof, a plate slidably mounted on the support, means tending to elevate the plate, a second form curved oppositely to the first form secured to the plate, a third form curved to correspond to the second form and located a distance below the same on the plate, means to carry the plate downwardly, movably mounted means for limiting the downward movement of the plate, a rod having a hooked upper end slidably mounted on the back of the plate, said hook extending over the first form, and means to elevate the hook above the form when the plate is in uppermost position.

3. ln combination, an upright support, a curved form secured at the upper end of the support, a plate slidably mounted on the support, a plurality of forms curved oppositely from the first form adjustably connected to the plate in spaced vertical relation, springs interposed between the plate and the first form, a foot lever pivotally mounted below the plate, a connection between the lever and plate and means movable into and out of the path of movement of the foot lever for controlling the extent of downward movement of the foot lever.

4. In combination, an upright support, a curved form secured at the upper end of the support, a plate slidably mounted on the support, a plurality of forms adjustably connected to the plate one over the other, means tending to elevate the plate, means to operate the plate in a downward direction, means to stop said downward movement of the plate at a predetermined point, said stop means being movable to an inoperative position, a rod carried loosely by the plate at the rear side thereof, a hook at the upper end of the rod projecting forward over the upper form, and means to elevate the h ook a short distance above the first form when the plate is in uppermost position.

5. ln combination, an upright support, a form secured at the upper end of the support, a plate slidably mounted on the support, two forms secured to the plate one over the other, means tending to elevate the plate, a foot lever pivotally mounted below the plate, a connection between the lever and plate, and a movable stop device positionedV below the lever to limit and control the downward movement of the lever.

6. In combination, an upright support, a form secured at its upper end, a plate slidably mounted on the upright, a form connected to the plate, means normally tending to elevate the plate to upper position, afoot lever pivotally mounted below the plate, a connection between the lever and plate, a rod having angularly turned ends rotatably mounted below the lever, a plurality of thin bars connected to and between the said ends, and a stop to limit the turning movement of the rod, substantially as described.

In testimony whereof I affix my signature.

WILLIAM 7. PUTNEY. 

